80 Works

Rom, Italien. Ein neues Forschungsprojekt auf dem Kapitol in Rom. Grabungen im Garten des ehemaligen preußischen Hospitals, Kampagne 2018

Ortwin Dally, Silvia Aglietti, Heinz Beste, Alessandro Blanco, Alberto Danti, Karoline Manfrecola, Pamela Manzo, Daniele Nepi, Claudio Parisi Presicce, Roberta Tanganelli & Francesca Zagari
A first campaign of a new project on the Capitoline Hill took place between July and September 2018 on the southwestern tip of the Capitol Hill in Rome including geophysical prospections, excavations in the garden behind the first Institute’s building and the former Protestant Hospital of 1836 and a beginning documentation of the remaining architectural ruins of the temple of Iuppiter Optimus Maximus. The research of a three-week measuring campaign was going to focus on...

Data from: Release from natural enemies mitigates inbreeding depression in native and invasive Silene latifolia populations

Karin Schrieber, Sabrina Wolf, Catherina Wypior, Diana Höhlig, Stephen R. Keller, Isabell Hensen & Susanne Lachmuth
Inbreeding and enemy infestation are common in plants and can synergistically reduce their performance. This inbreeding × environment (I×E) interaction may be of particular importance for the success of plant invasions if introduced populations experience a release from attack by natural enemies relative to their native conspecifics. Here, we investigate whether inbreeding affects plant infestation damage, whether inbreeding depression in growth and reproduction is mitigated by enemy release and whether this effect is more pronounced...

Data from: Habitat amount, not patch size and isolation, drives species richness of macro‐moth communities in countryside landscapes

Thomas Merckx, Murilo Dantas De Miranda & Henrique Miguel Pereira
Aim: Our aim is to test whether species richness patterns are best explained by the effect of the total amount of habitat within the landscape, or instead by a combination of patch size and patch isolation effects. To this end, we jointly contrast the habitat amount hypothesis and countryside biogeography with patch size and isolation concepts from island biogeography. Location: Three multi-habitat landscapes in Peneda-Gerês National Park, NW Portugal. Taxon: Macro-moths (Lepidoptera). Methods: Light-trapping using...

Data from: Disturbance alters beta-diversity but not the relative importance of community assembly mechanisms

Jonathan A. Myers, Jonathan M. Chase, Raelene M. Crandall & Iván Jiménez
1.Ecological disturbances are often hypothesized to alter community assembly processes that influence variation in community composition (β-diversity). Disturbance can cause convergence in community composition (low β-diversity) by increasing niche selection of disturbance-tolerant species. Alternatively, disturbance can cause divergence in community composition (high β-diversity) by increasing habitat filtering across environmental gradients. However, because disturbance may also influence β-diversity through random sampling effects owing to changes in the number of individuals in local communities (community size) or...

Data from: Invasion success in polyploids: the role of inbreeding in the contrasting colonization abilities of diploid versus tetraploid populations of Centaurea stoebe s.l

Christoph Rosche, Isabell Hensen, Patrik Mráz, Walter Durka, Matthias Hartmann & Susanne Lachmuth
As a consequence of founder effects, inbreeding can hamper colonization success: First, in species with self-incompatibility controlled by an S-locus, inbreeding may decrease cross-compatibility, mainly due to the sharing of identical S-alleles between closely related mating partners. Secondly, inbreeding can reduce fitness of inbred relative to outbred offspring (i.e. inbreeding depression). Polyploids often show reduced inbreeding depression compared to diploids, which may contribute to the overrepresentation of polyploids among invasive species. This is the first...

Data from: Tracking population genetic signatures of local extinction with herbarium specimens

Christoph Rosche, Annnett Baasch, Karen Runge, Philipp Brade, Sabrina Träger, Christian Parisod & Isabell Hensen
Background and Aims Habitat degradation and landscape fragmentation dramatically lower population sizes of rare plant species. Decreasing population sizes may, in turn, negatively affect genetic diversity and reproductive fitness which can ultimately lead to local extinction of populations. Although such extinction vortex dynamics have been postulated in theory and modelling for decades, empirical evidence from local extinctions of plant populations is scarce. In particular, comparisons between current vs. historical genetic diversity and differentiation are lacking...

Dataset for estimation of the biotic and climatic niche breadths and geographic range size of beech (Fagus) species worldwide

Qiong Cai, Erik Welk, Chengjun Ji, Wenjing Fang, Francesco Maria Sabatini, Jianxiao Zhu, Jiangling Zhu, Zhiyao Tang, Fabio Attorre, Juan Antonio Campos, Andraž Čarni, Milan Chytrý, Süleyman Çoban, Jürgen Dengler, Jiri Dolezal, Richard Field, József Pál Frink, Hamid Gholizadeh, Adrian Indreica, Ute Jandt, Dirk Nikolaus Karger, Jonathan Lenoir, Robert K. Peet, Remigiusz Pielech, Michele De Sanctis … & Helge Bruelheide
This dataset could be used to test whether the commonly observed positive range size–niche breadth relationship, as posited by the “niche breadth hypothesis”, exists for Fagus, one of the most dominant and widespread broad‐leaved deciduous tree genera in temperate forests of the Northern Hemisphere. There are many ways to estimate niche breadth. Here, we estimated biotic and climatic niche breadths per species using plot‐based co‐occurrence data and climate data, respectively. The range sizes of the...

Interaction network for eleven Cucurbita pepo sites in Guatemala

Patricia Landaverde-González, Eunice Enriquez & Juan Nuñez Farfan
In recent years, evidence has been found that plant-pollinator interactions are altered by land-use and that genetic diversity also plays a role. However, how land-use and genetic diversity influence plant-pollinator interactions, particularly in the Neotropics, where many endemic plants exist is still an open question. Cucurbita pepo is a monoecious plant and traditional crop wide distributed, with high rates of molecular evolution, landraces associated with human cultural management and a history of coevolution with bees,...

Data from: The leaf economic and plant size spectra of European forest understory vegetation

Josep Padullés Cubino, Idoia Biurrun, Gianmaria Bonari, Tatiana Braslavskaya, Xavier Font, Ute Jandt, Florian Jansen, Valerijus Rašomavičius, Wolfgang Willner & Milan Chytrý
Forest understories play a vital role in ecosystem functioning and the provision of ecosystem services. However, the extent to which environmental conditions drive dominant ecological strategies in forest understories at the continental scale remains understudied. Here, we used ~29,500 forest vegetation plots sampled across Europe and classified into 25 forest types to explore the relative role of macroclimate, soil pH, and tree canopy cover in driving abundance-weighted patterns in the leaf economic spectrum (LES) and...

Biogeographic differences in plant-soil biota relationships contribute to the invasion exotic range expansion of Verbascum thapsus

Julia Dieskau, Helge Bruelheide, Alexandra Erfmeier & Jessica Gutknecht
Exotic plant species can evolve adaptations to environmental conditions in the exotic range. Furthermore, soil biota can foster exotic spread in the absence of negative soil pathogen-plant interactions or because of increased positive soil biota-plant feedbacks in the exotic range. Little is known, however, about the evolutionary dimension of plant-soil biota interactions when comparing native and introduced ranges. To assess the role of soil microbes for rapid evolution in plant invasion, we subjected Verbascum thapsus,...

Data from: Testing macroecological abundance patterns: the relationship between local abundance and range size, range position and climatic suitability among European vascular plants

Maria Sporbert, Petr Keil, Gunnar Seidler, Helge Bruelheide, Ute Jandt, Svetlana Aćić, Idoia Biurrun, Juan Antonio Campos, Andraž Čarni, Milan Chytrý, Renata Custerevska, Jürgen Dengler, Valentin Golub, Florian Jansen, Anna Kuzemko, Jonathan Lenoir, Corrado Marcenò, Jesper Erenskjold Moeslund, Aaron Pérez-Haase, Solvita Rūsiņa, Urban Šilc, Ioannis Tsiripidis, Vigdis Vandvik, Kiril Vassilev, Risto Virtanen … & Erik Welk
Aim: A fundamental question in macroecology centres around understanding the relationship between species’ local abundance and their distribution in geographic and climatic space (i.e. the multi-dimensional climatic space or climatic niche). Here, we tested three macroecological hypotheses that link local abundance to the following range properties: (1) the abundance-range size relationship, (2) the abundance-range centre relationship, and (3) the abundance-suitability relationship. Location: Europe Taxon: Vascular plants Methods: Distribution range maps were extracted from the Chorological...

Changes in community-weighted trait mean, functional diversity, soil chemical properties and temperature along an elevational gradient in Tenerife, Canary Islands

Amanda Ratier Backes, Larissa Frey, José Ramón Arévalo & Sylvia Haider
This dataset comprises community-weighted trait means and functional diversity of leaf traits, chemical soil properties and temperature recorded in roadside (disturbed) and interior (less disturbed) plots, along an elevational gradient of 2,300 m in Tenerife, Canary Islands. The leaf traits measured were specific leaf area (SLA), nitrogen, nitrogen to phosphorus ratio, leaf dry matter content (LDMC) and carbon to phosphorus ratio. The soil chemical properties measured were pH, nitrogen, nitrogen to phosphorus ratio, carbon to...

Local adaptation constrains drought tolerance in a tropical foundation tree

Kasey Barton, Casey Jones, Kyle Edwards, Aaron Shiels & Tiffany Knight
1. Plant species with broad climatic ranges might be more vulnerable to climate change than previously appreciated due to intraspecific variation in climatic stress tolerance. In tropical forests, drought is increasingly frequent and severe, causing widespread declines and altering community dynamics. Yet, little is known about whether foundation tropical trees vary in drought tolerance throughout their distributions, and how intraspecific variation in drought tolerance might contribute to their vulnerability to climate change. 2. We tested...

Testing Finch’s hypothesis: the role of organismal modularity on the escape from actuarial senescence

Connor Bernard, Aldo Compagnoni & Roberto Salguero-Gómez
1. Until recently, senescence was assumed to be a universal phenomenon. Evolutionary theories of senescence predict that no organism may escape the physiological decline that results in an increase in mortality risk and/or decline in fertility with age. However, evidence both in animals and plants has emerged in the last decade defying such predictions. Researchers are currently seeking mechanistic explanations for the observed variation in ageing trajectories. 2. We argue that the historical view on...

Data from: Comparative transcriptomic analysis of the mechanisms underpinning ageing and fecundity in social insects

Judith Korb, Karen Meusemann, Denise Aumer, Abel Bernadou, Daniel Elsner, Barbara Feldmeyer, Susanne Foitzik, Jürgen Heinze, Romain Libbrecht, Silu Lin, Megha Majoe, José Manuel Monroy Kuhn, Volker Nehring, Matteo A. Negroni, Robert J. Paxton, Alice C. Séguret, Marah Stoldt & Thomas Flatt
Exceptional longevity of social insect queens despite their lifelong high fecundity remains poorly understood in ageing biology. To gain insights into the mechanisms that might underlie ageing in social insects, we compared gene expression patterns between young and old castes (both queens and workers) across different lineages of social insects (two termite, two bee and two ant species). After global analyses, we paid particular attention to genes of the insulin/insulin-like growth factor 1 signalling (IIS)/target...

Experimental evidence that novel land management interventions inspired by history enhance biodiversity

Robert Hawkes, Jennifer Smart, Andy Brown, Helen Jones, Steve Lane, Colin Lucas, James McGill, Nick Owens, Amanda Ratier Backes, Jonathan Webb, Doreen Wells & Paul Dolman
To address biodiversity declines within semi-natural habitats, land-management must cater for diverse taxonomic groups. Integrating our understanding of the ecological requirements of priority (rare, scarce or threatened) species through ‘biodiversity auditing’, with that of the intensity and complexity of historical land-use, encourages novel forms of management. Experimental confirmation is needed to establish whether this enhances biodiversity conservation relative to routine management. Biodiversity auditing and historical land-use of dry-open terrestrial habitats in Breckland (Eastern England) both...

Data for: Winners and losers over 35 years of dragonfly and damselfly distributional change in Germany

Diana Bowler, David Eichenberg, Klaus-Jürgen Conze, Frank Suhling, Kathrin Baumann, Theodor Benken, André Bönsel, Torsten Bittner, Arne Drews, André Günther, Nick Isaac, Falk Petzold, Marcel Seyring, Torsten Spengler, Bernd Trockur, Christoph Willigalla, Helge Bruelheide, Florian Jansen & Aletta Bonn
Aim: Recent studies suggest insect declines in parts of Europe; however, the generality of these trends across different taxa and regions remains unclear. Standardized data are not available to assess large-scale, long-term changes for most insect groups but opportunistic citizen science data is widespread for some. Here, we took advantage of citizen science data to investigate distributional changes of Odonata. Location: Germany Methods: We compiled over 1 million occurrence records from different regional databases. We...

Data from: Landscape genetic analysis suggests stronger effects of past than current landscape structure on genetic patterns of Primula veris

Iris Reinula, Sabrina Träger, Ignacio M. Hernández-Agramonte, Aveliina Helm & Tsipe Aavik
This dataset contains genetic and landscape data of 19 Primula veris populations in Muhu and Saaremaa islands in Estonia. Genetic samples were collected in 2015 and 2016. Landscape data was extracted from maps dated 2016 and 2017 for current data and 1930s for historical data. Data is divided to node- and link-based data. Node-based data contains genetic diversity data of the P. veris populations and landscape data in circular buffers surrounding the populations. Link-based data...

Data from: Impacts of species richness on productivity in a large-scale subtropical forest experiment

Yuanyuan Huang, Yuxin Chen, Nadia Castro-Izaguirre, Martin Baruffol, Matteo Brezzi, Anne Lang, Ying Li, Werner Härdtle, Werner Von Oheimb, Xuefeu Yang, Xiaojuan Liu, Kequan Pei, Sabine Both, Bo Yang, David Eichenberg, Thorsten Assmann, Jürgen Bauhus, Thorsten Behrens, François Buscot, Xiao-Yong Chen, Douglas Chester, Bing-Yang Ding, Walter Durka, Alexandra Erfmeier, Jingyun Fang … & Bernhard Schmid
Biodiversity experiments have shown that species loss reduces ecosystem functioning in grassland. To test whether this result can be extrapolated to forests, the main contributors to terrestrial primary productivity, requires large-scale experiments. We manipulated tree species richness by planting more than 150,000 trees in plots with 1 to 16 species. Simulating multiple extinction scenarios, we found that richness strongly increased stand-level productivity. After 8 years, 16-species mixtures had accumulated over twice the amount of carbon...

Data from: Herbivores safeguard plant diversity by reducing variability in dominance

Brent Mortensen, Brent Danielson, Stan W. Harpole, Juan Alberti, Carlos Alberto Arnillas, Lori Biederman, Elizabeth T. Borer, Marc W. Cadotte, John M. Dwyer, Nicole Hagenah, Yann Hautier, Pablo Luis Peri, Eric W. Seabloom & W. Stanley Harpole
1. Reductions in community evenness can lead to local extinctions as dominant species exclude subordinate species; however, herbivores can prevent competitive exclusion by consuming otherwise dominant plant species, thus increasing evenness. While these predictions logically result from chronic, gradual reductions in evenness, rapid, temporary pulses of dominance may also reduce species richness. Short pulses of dominance can occur as biotic or abiotic conditions temporarily favor one or a few species, manifested as increased temporal variability...

Data from: Post-fragmentation population structure in a cooperative breeding Afrotropical cloud forest bird: emergence of a source-sink population network

Martin Husemann, Laurence Cousseau, Tom Callens, Erik Matthysen, Carl Vangestel, Caspar Hallmann & Luc Lens
The impact of demographic parameters on the genetic population structure and viability of organisms is a long-standing issue in the study of fragmented populations. Demographic and genetic tools are now readily available to estimate census and effective population sizes and migration and gene flow rates with increasing precision. Here we analysed the demography and genetic population structure over a recent 15-year time span in five remnant populations of Cabanis's greenbul (Phyllastrephus cabanisi), a cooperative breeding...

Data from: A trait-based approach to predict population genetic structure in bees

Margarita M. Lopez-Uribe, Shalene Jha & Antonella Soro
Understanding population genetic structure is key to developing predictions about species susceptibility to environmental change, such as habitat fragmentation and climate change. It has been theorized that life-history traits may constrain some species in their dispersal and lead to greater signatures of population genetic structure. In this study, we use a quantitative comparative approach to assess if patterns of population genetic structure in bees are driven by three key species-level life-history traits: body size, sociality,...

Data from: GloPL, a global data base on pollen limitation of plant reproduction

Joanne. M. Bennett, Janette. A. Steets, Jean. H. Burns, Walter Durka, Jana. C. Vamosi, Gerardo Arceo-Gómez, Martin Burd, Laura. A. Burkle, Allan. G Ellis, Leandro Freitas, Junmin Li, James. G. Rodger, Marina Wolowski, Jing Xia, Tia-Lynn Ashman & Tiffany. M. Knight
Plant reproduction relies on transfer of pollen from anthers to stigmas, and the majority of flowering plants depend on biotic or abiotic agents for this transfer. A key metric for characterizing if pollen receipt is insufficient for reproduction is pollen limitation, which is assessed by pollen supplementation experiments. In a pollen supplementation experiment, fruit or seed production by flowers exposed to natural pollination is compared to that following hand pollination either by pollen supplementation (i.e....

Data from: The genomes of two key bumblebee species with primitive eusocial organisation

Ben M. Sadd, Seth M. Barribeau, Guy Bloch, Dirk C. De Graaf, Peter Dearden, Christine Elsik, Jurgen Gadau, Cornelius Grimmelikhuijzen, Martin Hasselmann, Jeffrey Lozier, Hugh Robertson, Guy Smagghe, Eckart Stolle, Matthias Van Vaerenbergh, Robert Waterhouse, Erich Bornberg-Bauer, Steffan Klasberg, Anna Bennett, Francisco Camara, Roderic Guigo, Katharina Hoff, Marco Mariotti, Monica Munos-Torres, Terence Murphy, Didac Santesmasses … & Kim C. Worley
Background: The shift from solitary to social behavior is one of the major evolutionary transitions. Primitively eusocial bumblebees are uniquely placed to illuminate the evolution of highly eusocial insect societies. Bumblebees are also invaluable natural and agricultural pollinators, and there is widespread concern over recent population declines in some species. High-quality genomic data will inform key aspects of bumblebee biology, including susceptibility to implicated population viability threats. Results: We report the high quality draft genome...

Gender in die Hochschullehre : Das Projekt gender*bildet der MLU Halle-Wittenberg

Lena Eckert & Dayana Lau
Seit einigen Jahren werden verstärkt Projekte und Programme zur Verankerung von Gender Studies in der Hochschullehre eingerichtet. Eines von ihnen ist das Projekt gender*bildet, das es seit Juni 2018 an der MLU Halle-Wittenberg gibt. Das Projekt bietet Weiterbildungen für Lehrende zu gender- und diversitätsreflektierender Hochschuldidaktik sowie ein Zertifikat in Gender Studies an und fördert die Verankerung von Gender und Queer Studies in den Fachdisziplinen.

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  • Martin Luther University Halle-Wittenberg
  • German Center for Integrative Biodiversity Research
  • Helmholtz Centre for Environmental Research
  • University of Minnesota
  • University of Freiburg
  • Ghent University
  • University of the Basque Country
  • University of Würzburg
  • Masaryk University
  • Utah State University